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A long and peaceful sleep caused by a larger than recommended dose of Nyquil. You do not necessarily have to be ill to have a Nysleep.

Recommended intake: Four shots of Cherry-Flavoured nyquil an hour before desired sleep time.
Shannon: I slept for twelve hours last night and I'm feeling great!

Allison: How did you manage to sleep for so long?

Shannon: I had four shots of Nyquil.

Allison: Sounds like a Nysleep! I think I'm going to do that tonight!
by Princessnyny January 21, 2009
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